(Dike) In hydrologic terms, a long, narrow embankment usually built to protect land from flooding. If built of concrete or masonary the structure is usually
referred to as a flood wall. Levees and floodwalls confine streamflow within a specified area to prevent flooding. The term "dike" is
used to describe an embankment that blocks an area on a reservoir or lake rim that is lower than the top of the dam.

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